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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: Optimal application of pavement preservation or preventive maintenance is critical for highway agenciesthe impact of pavement preservation on agency cost and vehicle operation cost (VOC) and analyzed the optimaltiming of preservation treatments.The optimal timing calculated based on VOC is always earlier than the optimal timing calculated basedThere are considerable differences among the optimal timing of three preservation treatments.

Keywords： pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

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Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 115-122 doi: 10.15302/J-FEM-2016019

Abstract: Based on life cycle assessment method and the life cycle cost analysis, the optimal timing model of activeeconomic efficiency and corresponding operation mode of electro-mechanical products when recycling in the optimaltiming.To validate the optimal timing model for electro-mechanical products active remanufacturing, a specific

Keywords： electro-mechanical products     active remanufacturing     optimal timing     reverse logistics     recycling mode    

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Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion

Xin LIANG, Jianyong ZHANG, Zhongzhao LI, Jiabo ZHANG, Zhen HUANG, Dong HAN

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 778-789 doi: 10.1007/s11708-020-0698-8

Abstract: experimentally and numerically studied the effects of fuel combination and intake valve opening (IVO) timingBy changing the gasoline fraction (GF) from 0.1 to 0.5 and the IVO timing from –15°CA ATDC to 35°CA ATDCThe results showed that both the increased GF and the retarded IVO timing delay the combustion phasingdecrease the peak heat release rate and the maximum average combustion temperature, whereas the IVO timingHC and CO emissions are decreased with reduced GF, advanced IVO timing and increased operational load

Keywords： homogeneous charge compression ignition     dual-fuel     n-heptane     gasoline     intake valve opening timing    

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Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 194-201 doi: 10.1007/s11708-008-0035-0

Abstract: The results show that ignition timing has a significant influence on engine performance, combustion andThe interval between the end of fuel injection and ignition timing is a very important parameter formaximum rate of pressure rise and maximum heat release rate increase with the advancing of ignition timingIn the lean combustion condition, the exhaust CO does not vary much with ignition timing.At the same ignition timing, the exhaust HC decreases with hydrogen addition while the exhaust CO and
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Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 700-706 doi: 10.1631/FITEE.1400439

Abstract: MDRBD) technique is proposed for reducing access time by suppressing the sense-amplifier enable (SAE) timingCompared with the traditional technique, this strategy, using statistical theory, reduces the timingAt a supply voltage of 0.6 V, the simulation results show that the standard deviations of the SAE timing

Keywords： Process-variation-robust     Sense amplifier (SA)     Replica bit-line (RBL) delay     Timing variation    

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Smart product design for automotive systems

A. Galip ULSOY

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 102-112 doi: 10.1007/s11465-019-0527-0

Abstract: Approaches to CSM design are presented, as well as applications of the method to a variable-cam-timing

Keywords： mechatronics     automotive control     co-design     component swapping modularity     active suspensions     variable camshaft timing    

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A global synthesis of the effectiveness and ecological impacts of management interventions for species

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1741-x

Abstract:

● Spartina abundance decreases over time by chemical control.

Keywords： Plant invasion     Biodiversity     Meta-analysis     Restoration     Salt marshes     Treatment timing    

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Impacts of climate change on optimal mixture design of blended concrete considering carbonation and chloride

Xiao-Yong WANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 473-486 doi: 10.1007/s11709-020-0608-5

Abstract: This study presents a procedure for the optimal mixture design of ternary blended concrete consideringA genetic algorithm is used to find the optimal mixture considering various constraints.

Keywords： ternary blended concrete     climate change     optimal mixture design     carbonation     chloride ingress    

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Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

Xiangjie WANG, Danhui DAN, Rong XIAO, Xingfei YAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 286-292 doi: 10.1007/s11709-017-0415-9

Abstract: A wind pressure sensor based on fiber Bragg grating (FBG) for engineering structure was investigated in this paper. We established a transaction model of wind pressure to strain and proposed a method of temperature compensation. By finite element analysis, the basic parameters of the sensor were optimized with the aim of maximum strain under the basic wind pressure proposed in relative design code in China taking geometrical non-linearity into consideration. The result shows that the wind pressure sensor we proposed is well performed and have good sensing properties, which means it is a technically feasible solution.

Keywords： wind pressure measurement     wind pressure sensor     fiber Bragg grating     optimal design    

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A PLATFORM TO AID SELECT THE OPTIMAL TOOL TO DESIGN GUIDE RNAS

Frontiers of Agricultural Science and Engineering   Pages 296-305 doi: 10.15302/J-FASE-2022479

Abstract:

● Summaries on sgRNAs design.

Keywords： CRISPR/Cas     Aid-TG     gene editing     sgRNA design     web server    

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Solving multi-objective optimal power flow problem considering wind-STATCOM using differential evolution

Belkacem MAHDAD, K. SRAIRI

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 75-89 doi: 10.1007/s11708-012-0222-x

Abstract: based differential evolution was proposed for solving the problem of multi-objective environmental optimal

Keywords： differential evolution     multi-objective function     optimal power flow     economic dispatch     valve point effect    

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Trajectory planning of mobile robots using indirect solution of optimal control method in generalized

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 23-28 doi: 10.1007/s11465-012-0304-9

Abstract:

This paper presents an optimal control strategy for optimal trajectory planning of mobile robots byThen, the optimal path planning of the mobile robot is formulated as an optimal control problem.To solve the problem, an indirect solution of the optimal control method is employed, and conditions

Keywords： mobile robot     trajectory planning     nonlinear dynamic     optimal control    

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Structural optimal design of a swing vane compressor

Junjie MA,Xiang CHEN,Zongchang QU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 764-769 doi: 10.1007/s11708-016-0449-z

Abstract: In this paper, a novel swing vane rotary compressor (SVC) was introduced, which had significant advantages—simple mechanism, reduced frictional loss, reliable operation, and a comparatively higher compression ratio. Based on the swing vane compressor geometry model, thermodynamic model and kinetic model, the mathematical model of optimum design was established, and further theoretical and experimental studies were conducted. The length of the cylinder, radius of the rotor and cylinder were defined as design variables and the reciprocal of EER as objective function. The complex optimization method was adopted to study the structure of the swing vane compressor. The theoretical model could provide an effective method for predicting compressor performance, which would also contribute to structural optimization of the SVC. The study shows that the friction loss of the compressor are greatly reduced by optimized design in a given initial value, and the EER increased by 8.55%.

Keywords： swing vane compressor     simulation     optimization design    

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Linear quadratic optimal controller for cable-driven parallel robots

Saeed ABDOLSHAH,Erfan SHOJAEI BARJUEI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 344-351 doi: 10.1007/s11465-015-0364-8

Abstract: A linear quadratic (LQ) optimal controller can provide all the states of a system for the feedback, suchThus, the application of such an optimal controller in cable-driven parallel robots can result in moreThis paper presents an approach to apply the LQ optimal controller on cable-driven parallel robots.To employ the optimal control theory, the static and dynamic modeling of a 3-DOF planar cable-drivenThe synthesis of the LQ optimal control is described, and the significant experimental results are presented

Keywords： accuracy     cable-driven parallel robot     linear quadratic optimal control    

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Multi-objective optimal allocation strategy for the energy internet in Huangpu District, Guangzhou, China

Pei LI, Guotian CAI, Yuntao ZHANG, Shangjun KE, Peng WANG, Liping GAO

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 241-253 doi: 10.1007/s11708-020-0660-9

Abstract: maximization and energy efficiency maximization as sub-objectives, the mathematical model of multi-objective optimal

Keywords： generation-grid-load-storage     energy internet     economy-environment-energy efficiency     multi-objective optimal    

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Title Author Date Type Operation

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Journal Article

Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion

Xin LIANG, Jianyong ZHANG, Zhongzhao LI, Jiabo ZHANG, Zhen HUANG, Dong HAN

Journal Article

Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

Journal Article

Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Journal Article

Smart product design for automotive systems

A. Galip ULSOY

Journal Article

A global synthesis of the effectiveness and ecological impacts of management interventions for species

Journal Article

Impacts of climate change on optimal mixture design of blended concrete considering carbonation and chloride

Xiao-Yong WANG

Journal Article

Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

Xiangjie WANG, Danhui DAN, Rong XIAO, Xingfei YAN

Journal Article

A PLATFORM TO AID SELECT THE OPTIMAL TOOL TO DESIGN GUIDE RNAS

Journal Article

Solving multi-objective optimal power flow problem considering wind-STATCOM using differential evolution

Belkacem MAHDAD, K. SRAIRI

Journal Article

Trajectory planning of mobile robots using indirect solution of optimal control method in generalized

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Journal Article

Structural optimal design of a swing vane compressor

Junjie MA,Xiang CHEN,Zongchang QU

Journal Article

Linear quadratic optimal controller for cable-driven parallel robots

Saeed ABDOLSHAH,Erfan SHOJAEI BARJUEI

Journal Article

Multi-objective optimal allocation strategy for the energy internet in Huangpu District, Guangzhou, China

Pei LI, Guotian CAI, Yuntao ZHANG, Shangjun KE, Peng WANG, Liping GAO

Journal Article